Montane Aero Cap YEAR ROUND MOUNTAIN CAP A great cap for summer use thanks to its UPF 40+ rating, or all year for running in the hills. Made with a full compliment of great materials like Cordura, Tactel and 3M Scotchlite. The cap is very stretchy and has a Teflon water repelency. Available in one size only it has a velcro adjuster at the back. Fabric: TACTEL® Dynamic Side Panels: DRYACTIV® Express Weight: 60g / 2.1oz (Size Medium) # Bi-fabric, zoned construction for stretch and wicking properties # Pre-curved peak # 360° MONTANE® logo reflective trim # Hook and loop adjustable size # Wicking inner band # Machine wash in warm water at 40C/104F using a liquid soap. Can be tumble dried at a low heat. # DO NOT use fabric softeners or bleach. Never dry clean.